The President is expected to make a renewed push to help Gulf allies create a region-wide defense system to guard against Iranian missiles.
Washington wants to be certain that any nuclear deal between Iran and major powers includes the possibility of restoring U.N. sanctions if Tehran breaks the agreement.
Federal agents for years monitored one of the two gunmen who were shot dead after opening fire with assault rifles at a heavily guarded Texas exhibit of caricatures of the Prophet Mohammad.
Britain's newborn princess has been named Charlotte Elizabeth Diana.
Britain's Duchess of Cambridge, the wife of Prince William, gave birth to a girl on Saturday.
Today marks the 40th anniversary of the fall of Saigon, the end of the Vietnam War, and the close of a bitter, devastating chapter in both U.S. and Vietnamese history.
International aid has finally begun arriving in the Himalayan nation of 28 million people, as experts warn the death toll could top 10,000.
Rescue and relief efforts are underway after a devastating 7.8 magnitude earthquake struck Nepal on Saturday.
Thousands began fleeing the capital Kathmandu on Monday after two days of powerful aftershocks and shortages of food and water.
The Senate plunges into a high-stakes debate this week over empowering Congress to review and possibly reject any nuclear deal with Iran.
A powerful earthquake struck Nepal and sent tremors through northern India on Saturday.
American al Qaeda member Adam Gadahn, who faced treason charges in the U.S., was killed in a drone strike.
Warren Weinstein, held captive since 2011, was apparently killed during drone strikes on an al Qaeda compound.
After a tentative deal between Iran and the six powers was reached, different interpretations have emerged over what was agreed to.
First celebrated in 1970, Earth Day reminds us to go green and love our planet.
Jurors in the trial of Boston Marathon bomber Dzhokhar Tsarnaev will decide what his punishment should be: life in prison or the death penalty.
The U.S. State Department says it is open to including Iran in past efforts to achieve a Syrian peace deal.
They were arrested as part of a yearlong FBI investigation into people trying to travel to Syria to join Islamic State.
The parents of the youngest victim of the marathon bombing urged authorities to take the death penalty off the table.
A compromise allowing Congress to vote on a nuclear deal may prompt Iranian negotiators to drive a harder bargain, but does not drastically weaken President Barack Obama's ability to deliver on a final agreement.